Laboratory Statement of Qualifications - Kappes, Cassiday ...
Laboratory Statement of Qualifications - Kappes, Cassiday ...
Laboratory Statement of Qualifications - Kappes, Cassiday ...
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<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates<br />
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong><br />
<strong>Qualifications</strong><br />
Metallurgical Process Technology<br />
Date:<br />
March 2001<br />
7950 Security Circle • Reno, Nevada 89506 • Telephone: 775 972 7575 • Facsimile: 775 972 4567 • Website: www.kcareno.com<br />
KAPPES, CASSIDAY & ASSOCIATES<br />
(KCA) has been performing commercial testing<br />
services aimed at providing data for the heap leaching <strong>of</strong><br />
gold and silver ores since 1972.<br />
While widely known for its heap leach expertise, KCA’s<br />
staff is experienced with testing and designing a wide<br />
range <strong>of</strong> metallurgical processes.<br />
Since 1992, KCA has conducted bio-oxidation testing<br />
programs on refractory ores for several clients in Nevada<br />
and West Africa.<br />
KCA’s laboratory capabilities now extend beyond its<br />
traditional focus on gold/silver metallurgy. KCA<br />
conducted all <strong>of</strong> the process development testwork<br />
including pilot plant testing that formed the basis for the<br />
very complex ITOS Chloride Leach Plant in Bolivia<br />
which recovers silver, copper, lead and antimony.<br />
Recently, KCA completed a US$1 million dollar<br />
research and flowsheet development project for a<br />
copper-silver-manganese orebody in Peru.<br />
KCA’s laboratory services group now includes a fullservice<br />
analytical laboratory. The analytical group is<br />
operated commercially under the name <strong>of</strong> Florin<br />
Analytical Services. The analytical services team <strong>of</strong>fers a<br />
wide range <strong>of</strong> analytical techniques including ICP-AES,<br />
Flame-AAS and Fire Assay.<br />
For additional information please contact :<br />
Terry Albert<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates.<br />
7950 Security Circle, Reno, Nevada 89506<br />
Telephone: 775 972 7575<br />
Facsimile: 775 972 4567<br />
E-mail: TAlbert@kcareno.com<br />
FACILITIES<br />
KCA occupies a 40,000 square foot building that rests on three<br />
acres <strong>of</strong> land just north <strong>of</strong> Reno, Nevada. The building, acquired<br />
in 1994, was purchased to address the expanding needs <strong>of</strong><br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates. The laboratory division <strong>of</strong><br />
KCA maintains its complete sample preparation, wet-analytical<br />
and bench-scale processing divisions within this building.<br />
The lab is capable <strong>of</strong> receiving samples <strong>of</strong> up to 40 tonnes, on<br />
pallets, in barrels or in bulk. Sample preparation <strong>of</strong> bulk<br />
samples can be completed utilizing a Bobcat Front End Loader,<br />
a large gasoline engine driven Jaw Crusher as well as smaller<br />
laboratory-scale crushers, screen decks, mills and pulverizers.<br />
The laboratory maintains the following major equipment items:<br />
1– 10X12 Jaw Crusher<br />
2-4X6 Jaw Crushers<br />
2-10-inch Cone Crushers<br />
2-Standard Bico Disc Grinders<br />
2-Standard TM Ring and Puck Pulverizers<br />
2-Gilson Screen Decks<br />
4-Tyler Roto-taps<br />
1-Standard Bond Ball Mill<br />
1-Denver Lab Flotation Machine<br />
2-WEMCO Flotation Machines<br />
2-High Temperature Tube Furnaces<br />
7-Jar Mill Rolling Tables<br />
2-Perkin Elmer Flame-AAS Units<br />
1-Perkin Elmer ICP-AES<br />
1-Perkin Elmer Mercury Analyzer (FIMS)<br />
1-3 inch Knelson Bowl Concentrator<br />
1-No. 13 Wilfley Table (Sand Table)<br />
1-Deister Table (Finishing Table)<br />
4-Gas and or electric drying ovens<br />
1-Flotation Pilot Plant, capacity 0.2 metric tonnes per hour<br />
1-Williams and Wilson Fire Assay Furnace<br />
3-Cress Fire Assay Furnaces
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
KEY PERSONNEL<br />
The staff at KCA constitutes a team <strong>of</strong> pr<strong>of</strong>essionals with<br />
varied technical abilities, especially adapted to work on<br />
projects requiring a complete range <strong>of</strong> laboratory services.<br />
The permanent staff consists <strong>of</strong> 35 people in the United<br />
States, Peru and Australia. KCA has employed temporary<br />
staff exceeding 100 people during peak periods <strong>of</strong> pilot<br />
scale testing and field construction projects. Key<br />
pr<strong>of</strong>essional personnel are briefly introduced below:<br />
DANIEL W. KAPPES, President, is a mining and<br />
metallurgical engineer and has been associated with the<br />
company since 1972. Dan is a recognized authority on<br />
precious metals heap leaching and has presented several<br />
technical papers on the subject. In addition to work on<br />
numerous small projects, he has directed laboratory and<br />
field testing on several projects that have subsequently<br />
become major precious metal mines.<br />
MICHAEL W. CASSIDAY, Vice-President, is a<br />
metallurgical engineer and has been associated with the<br />
company since 1978. Mike’s primary expertise is in the<br />
management <strong>of</strong> field projects. Mike has been associated<br />
with the management <strong>of</strong> several mining start ups and heap<br />
leach field test projects throughout the world.<br />
RANDALL A. PYPER, General Manager KAPPES,<br />
CASSIDAY & ASSOCIATES AUSTRALIA (KCAA),<br />
holds a Masters’ degree in metallurgical engineering.<br />
Before joining the KCA staff, Randy was Chief<br />
Metallurgist <strong>of</strong> the 2500 ton per day agitated leach plant<br />
and 3000 ton per day heap leach facility <strong>of</strong> Carlin Gold<br />
Mining Company (Newmont Gold Company). His earlier<br />
pr<strong>of</strong>essional background includes production and process<br />
engineering for PPG industries, Lake Charles, Louisiana,<br />
and mining chemicals technical service and development<br />
for the Dow Chemical Company at Walnut Creek,<br />
California.<br />
numerous small projects, he has directed field sampling programs<br />
and laboratory testing studies on several projects that have<br />
subsequently become major precious metal mines.<br />
W. ROBERT ROSE, Manager-South American Projects, is a<br />
mining engineer with start up and operations experience in heap<br />
leach projects for leaching both ore and tailings, and in gold placer<br />
mines. As manager for South American projects, Bob was<br />
involved in the design and construction supervision <strong>of</strong> the Potosi<br />
project in Bolivia. He recently managed the preparation <strong>of</strong> two<br />
bankable feasibility studies for heap leach operations in Mexico<br />
for the San Francisco and Moris projects. These two projects have<br />
subsequently received financing for the commencement <strong>of</strong><br />
construction.<br />
CARL E. DEFILIPPI, Senior Engineer/Project Manager, holds a<br />
Masters’ degree in Metallurgical Engineering and is certified as an<br />
Environmental Manager for the State <strong>of</strong> Nevada. Prior to joining<br />
the staff at KCA, Carl was the General Mill Foreman at Newmont<br />
Gold Company’s 9000 ton per day CIP mill and was involved in<br />
all phases <strong>of</strong> the start up <strong>of</strong> that mill. He had extensive experience<br />
with Newmont Gold as a senior metallurgist at their 2500 ton per<br />
day agitated leach plant and 3000 ton per day heap leach facility.<br />
He has also been involved in the management and construction <strong>of</strong><br />
field heap leach tests in Nevada and South Dakota.<br />
DANNY L. POOL (Associate Status), Process Metallurgist, has<br />
a Bachelor <strong>of</strong> Science degree in Chemistry. He has had more than<br />
30 years <strong>of</strong> laboratory and pilot scale research experience with the<br />
United States Bureau <strong>of</strong> Mines and has authored or co-authored<br />
over 20 publications. He has performed extensive studies on the<br />
oxidation <strong>of</strong> carbonaceous materials, the agglomeration <strong>of</strong> fine<br />
and coarse gold ores for heap leaching and the recovery <strong>of</strong> gold by<br />
carbon adsorption and electro winning. His vast experience also<br />
includes the construction and operation <strong>of</strong> a fused salt cell for the<br />
recovery <strong>of</strong> zinc from a chloride bath and the agglomeration <strong>of</strong><br />
tailings to decrease acid drainage.<br />
TERENCE E. ALBERT, Manager <strong>of</strong> <strong>Laboratory</strong><br />
Services and has been associated with KCA since 1991.<br />
He brings to the KCA team laboratory test work<br />
experience including flotation testing, gravity<br />
concentration, and cyanidation. As manager <strong>of</strong> laboratory<br />
operations, his primary functions are to oversee the<br />
operation <strong>of</strong> the Reno laboratory, to set up field laboratory<br />
projects for client companies, and to oversee the process<br />
control <strong>of</strong> field operations. In addition to work on
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
FREQUENTLY ASKED<br />
QUESTIONS (FAQ’s)<br />
1. List <strong>of</strong> Mineral Processing Services Offered:<br />
Flotation: KCA typically runs flotation tests in<br />
conjunction with the evaluation <strong>of</strong> gold ores. We<br />
maintain one laboratory Denver flotation machine and a<br />
one tonne/day pilot plant complete with ballmill, tailings<br />
filters and a bank <strong>of</strong> 7 Denver #5 Sub-A cells.<br />
Cyanide Leaching. KCA specializes in cyanide leaching<br />
<strong>of</strong> gold and silver ores and maintains complete facilities<br />
for bottle roll, agitated tank and column leach tests.<br />
Gravity Concentration. KCA typically runs gravity<br />
tests in conjunction with the evaluation <strong>of</strong> gold ores. We<br />
have a laboratory size Knelson concentrator and two labsized<br />
concentrating tables.<br />
Bulk Grinding/ Sample Preparation. We have a 16” x<br />
48” rod mill for preparation <strong>of</strong> large quantities <strong>of</strong> ground<br />
pulp. We have a loose association with MEG labs in<br />
Reno which maintains a large ceramic ball mill for<br />
preparation <strong>of</strong> high-volume iron-free pulps.<br />
Acid Leaching. KCA completed all aspects <strong>of</strong> lab testing<br />
and complex flowsheet design <strong>of</strong> the Itos chloride leach<br />
plant in Bolivia. At this plant lead, antimony, copper, tin<br />
and silver are processed. KCA has also completed the<br />
preliminary lab testing and flowsheet development<br />
program for the Berenguela Peru copper-silvermanganese<br />
deposit.<br />
Controlled Reactor Leaching. Part <strong>of</strong> the Berenguela<br />
program included a complete atmosphere-controlled,<br />
instrumented 5-liter leach system for leaching with acidic<br />
sulfur dioxide. Along with many other test parameters,<br />
gas inflow and outflow were continuously monitored.<br />
KCA is equipped to run this type <strong>of</strong> complex leaching test<br />
on a variety <strong>of</strong> chemical systems.<br />
Roasting. KCA maintains a Lindberg tube furnace, a set<br />
<strong>of</strong> fire assay furnaces, and a 2-liter resistance heated<br />
crucible furnace for running a variety <strong>of</strong> high temperature<br />
reactions.<br />
Analytical Support. Florin Analytical Laboratories is an<br />
independently operated commercial laboratory operated<br />
within the KCA lab complex. Florin maintains rigorous standards<br />
<strong>of</strong> quality control to ensure its position as a high-quality<br />
commercial laboratory. Florin equipment includes a P-E ICP; two<br />
P-E AA machines, a – mercury analyzer, and a complete wet<br />
chemistry laboratory.<br />
2. Facilities Location and Ease <strong>of</strong> Access. KCA maintains a<br />
United States Agricultural Department permit to import samples<br />
from overseas. U.S. Customs can clear samples at Reno’s<br />
International Airport. Trucks containing bulk samples can be<br />
driven directly into KCA’s laboratory. We maintain a 30 x 40 ft x<br />
20 ft high room with a smooth concrete floor specifically for the<br />
handling <strong>of</strong> large bulk samples. Facilities include a 10 x 12 inch<br />
jaw crusher for reduction <strong>of</strong> large samples.<br />
KCA’s 40,000 square foot building occupies three acres <strong>of</strong> land.<br />
Sufficient indoor and outdoor storage are available on-site so that<br />
bulk samples can be retained for several years if necessary.<br />
3. Names <strong>of</strong> Key Personnel. Pr<strong>of</strong>essional staff is listed in other<br />
areas <strong>of</strong> the <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong>. The following key<br />
people are not listed: Our lab assistant manager, Jim Defilippi, has<br />
been with us for over 20 years and regularly travels to overseas<br />
field locations to take samples or oversee tests. Two other<br />
technicians, Ken Gonzales and Leo Toral, have been with us for<br />
over ten years. Mike Bigelow, chief assayer for Florin, has been<br />
with Florin or its predecessor company (Legend Labs) for 7 years.<br />
These four people are thoroughly experienced in setting up and<br />
supervising tests, and in taking and processing samples. In<br />
addition to these persons, Florin labs has two experienced senior<br />
instrument technicians.<br />
4. Where are analytical facilities located? Florin Analytical<br />
Labs is located on the premises <strong>of</strong> the KCA metallurgical testing<br />
laboratory at KCA’s main <strong>of</strong>fice in Reno, Nevada. For outside<br />
analytical work, various other commercial mineral analytical labs<br />
are located in the Reno area.<br />
5. List <strong>of</strong> clients and projects that became operating mines.<br />
KCA has done the primary laboratory testing on at least 50<br />
properties which became operating mines. A list <strong>of</strong> some <strong>of</strong> these<br />
with references is attached.<br />
6. Maximum Size <strong>of</strong> Samples? We can easily process samples<br />
<strong>of</strong> 30 tonnes or more. Our largest crusher permits size reduction<br />
<strong>of</strong> samples containing 10-inch rocks, and we can <strong>of</strong> course<br />
manually reduce larger rocks. A large available floor area and a<br />
specific bulk sample room allow us to do careful prepping and
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
cone-and-quarter splitting <strong>of</strong> large samples.<br />
We have two leach columns set up for gold cyanide or<br />
acid copper leaching, which are 4 ft diameter and up to 20<br />
ft high. These columns can hold 12 tonnes <strong>of</strong> ore.<br />
11. Frequency <strong>of</strong> invoices and special billing requirements?<br />
KCA normally invoices the client monthly and expects payment<br />
within 30 days <strong>of</strong> issue <strong>of</strong> the faxed invoice. However, on intense<br />
testing programs for clients who pay late, KCA may invoice more<br />
<strong>of</strong>ten.<br />
7. How long are samples retained and how are they<br />
disposed <strong>of</strong>? KCA normally retains all samples for at<br />
least one year. Prior to disposing <strong>of</strong> samples the client is<br />
contacted to confirm his intentions. Disposition <strong>of</strong><br />
samples depends on the nature <strong>of</strong> the sample. Often the<br />
sample is returned to the client. “Chain-<strong>of</strong>-Custody”<br />
monitoring and hazardous waste disposal is available<br />
where required. Liquid samples from testing are usually<br />
reduced by evaporation, and solids disposed <strong>of</strong> in a<br />
hazardous waste landfill. KCA follows all applicable<br />
regulations and monitoring requirements.<br />
8. What quality assurance procedures are employed?<br />
All assays are duplicated to ensure that the highest quality<br />
analyses are reported. For the analysis <strong>of</strong> solutions,<br />
duplicate analyses are completed utilizing separate<br />
techniques when possible. Standard addition analyses are<br />
completed and analyses with spikes are run. In the case<br />
<strong>of</strong> solid samples, duplicate pulps and or carbon samples<br />
are submitted to two separate commercial labs for<br />
analysis. As much as 10 percent <strong>of</strong> the solid samples are<br />
re-submitted for assay to a third commercial laboratory.<br />
As much <strong>of</strong> the data relates directly to bench-scale tests,<br />
heads and tailings are checked routinely and compared<br />
with other tests on similar type material. Mass balances<br />
for each test are examined closely and tests re-run as<br />
required.<br />
9. How is project work scheduled and kept on track?<br />
KCA labs has been providing commercial testing services<br />
since 1972, and has developed a system <strong>of</strong> checks and<br />
balances including regular review <strong>of</strong> activities and results<br />
by senior management. Where necessary (but this is<br />
unusual), a formal computer-based project scheduling<br />
system can be employed.<br />
10. How long does it take to issue reports? For typical<br />
test programs, interim reports are issued weekly. KCA<br />
normally tries to issue final reports within two to three<br />
weeks after all final data are available. Because much <strong>of</strong><br />
the analysis is done in-house, data on complex benchscale<br />
tests can be available within a day or two <strong>of</strong> test<br />
completion.<br />
For additional information please contact :<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates<br />
7950 Security Circle, Reno, Nevada 89506<br />
President: Daniel W. <strong>Kappes</strong><br />
Vice President: Michael W. <strong>Cassiday</strong><br />
Telephone: 775 972 7575<br />
Facsimile: 775 972 4567<br />
E-mail: kca@kcareno.com<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates Australia PTY LTD<br />
13 Mumford Place<br />
Balcatta (Perth), W.A. 6021<br />
General Manager: Randall Pyper<br />
Telephone: (08) 9240 8400<br />
Facsimile: (08) 9240 8411<br />
E-mail: kcaa@bigpond.com<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> Peru S.A.<br />
Donatello 198 San Borja<br />
Lima—Peru<br />
Telephone: 511 476 0261<br />
Facsimile: 511 476 0136<br />
E-mail: kcaperu@amauta.rcp.net.pe
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
SAMPLE SHIPPING<br />
INFORMATION<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates (KCA) maintains a large<br />
shipping and receiving department. When shipping large<br />
sample groups, KCA can help arrange for consolidation<br />
and freight forwarding. Shipments <strong>of</strong> samples to KCA<br />
can be completed by air, ship or truck. When shipping<br />
samples to KCA, the shipment should be consigned as<br />
follows:<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates<br />
7950 Security Circle<br />
Reno, Nevada 89506 U.S.A<br />
Attention: Terry Albert<br />
Telephone: 775 972 7575<br />
Facsimile: 775 972 4567<br />
USDA Soil Permit No. S-56322<br />
If shipping into the United States by air or truck, the material can<br />
be shipped in bond to Reno, Nevada and then cleared through US<br />
Customs in Reno. KCA or Griffin Transport can assist with any<br />
documentation required for the shipment to clear Customs.<br />
SAMPLE DISPOSAL<br />
Samples received by <strong>Kappes</strong>, <strong>Cassiday</strong> & Associates are retained<br />
by KCA for a period <strong>of</strong> not more than one year following completion<br />
<strong>of</strong> the test program. Following project completion, at the request<br />
<strong>of</strong> the client, the samples can be returned (at cost) to the<br />
project location.<br />
Disposal by KCA is completed utilizing Nevada Division <strong>of</strong> Environmental<br />
Protection (NDEP) protocols. Typically the material is<br />
characterized and then sent to the appropriate land-fill. KCA reserves<br />
the right to back-charge the project for any reasonable cost<br />
associated with waste disposal.<br />
Geological Samples for Analysis Only. No<br />
Commercial Value.<br />
The shipment should be accompanied by a commercial<br />
invoice. The commercial invoice should state that the<br />
shipment is geologic material for analysis only. The<br />
value identified on the commercial invoice (for U.S. Customs<br />
Purposes) for the shipment should be US$0.10/<br />
kilogram <strong>of</strong> material. KCA maintains a United States Department<br />
<strong>of</strong> Agriculture permit that allows material to be<br />
shipped to KCA from outside <strong>of</strong> the U.S.A. The permit<br />
number is S-56322, and this number should be included<br />
on the commercial invoice.<br />
When the samples are in Reno, KCA’s Broker can be<br />
notified so that the shipment can be cleared through Customs.<br />
The information for KCA’s Broker is as follows:<br />
Griffin Transport Services, Inc.<br />
1095 Spice Islands Dr., #100<br />
Sparks, Nevada 89431<br />
Telephone: 775 331 8010<br />
Facsimile: 775 331 6745<br />
FAX pre-alerts for the shipment can be sent to KCA’s<br />
<strong>of</strong>fices in Reno as well as to Griffin Transport.
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
PROJECT DESCRIPTIONS<br />
KAPPES, CASSIDAY & ASSOCIATES specializes in an integrated, practical approach to mining projects, and can provide a<br />
complete range <strong>of</strong> services from preliminary project evaluation through operations management. A list <strong>of</strong> projects that illustrates<br />
KCA’s range <strong>of</strong> capabilities is presented below.<br />
BERENGUELA—SOMINBESA<br />
Dates: 1997 to present<br />
Location: Peru, South America<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates is completing a detailed laboratory test program for this large manganese, copper and silver orebody.<br />
Final feasibility studies will be completed on Berenguela in 2001, with production to commence by 2005.<br />
LA QUINUA—Newmont<br />
Dates: 1999 to present<br />
Location: Peru, South America<br />
KCA completed detailed laboratory testing to examine the relationship between heap stacking and permeability. KCA is currently<br />
involved in an on-going field program at La Quinua that is examining field agglomeration, stacking and permeability.<br />
PIERINA—Barrick<br />
Dates: 1999<br />
Location: Peru, South America<br />
KCA’s laboratory completed agglomeration testwork on material from Pierina and examined the relationship between heap<br />
stacking and permeability.<br />
SAN MARTIN—Glamis<br />
Dates: 1998 to present<br />
Location: Honduras, Central America<br />
KCA completed laboratory testwork which was then utilized in a feasibility that examined the economics <strong>of</strong> processing the material<br />
at San Martin via heap leaching methods. The project is currently under construction and KCA is completing construction <strong>of</strong><br />
the Turnkey ADR Plant for Glamis. The project is set to begin production in late 2000.<br />
YATELA—AngloGold<br />
Dates: 1998 to Present<br />
Location: Mali, West Africa<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> & Associates completed laboratory testwork that resulted in the completion <strong>of</strong> a full bankable feasibility study<br />
that examined the amenability <strong>of</strong> processing the Yatela ore via heap leach methods. The project is currently under construction<br />
and KCA has several long term contracts with AngloGold to act as owners representative during construction and start-up. The<br />
project is set to begin production in early 2001.<br />
TAPARKO—High River Gold<br />
Dates: 1998-1999<br />
Location: Burkino Faso, West Africa<br />
KCA completed laboratory testwork on this material to determine its amenability to heap leaching or milling.<br />
GROSS ROSEBEL—Cambior<br />
Dates: 1998<br />
Location: Suriname, South America<br />
KCA completed laboratory scale testwork to determine the ores amenability to heap leaching.
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
ITOS - Barex Empresa Minera, S.A. (BAREMSA) - COMIBOL<br />
Dates: 1992 - present<br />
Location: Bolivia, South America.<br />
Itos is a US$ 8.5 million, 600 tonne/day agitated leach plant designed to recover precious metals and base metals from previously<br />
processed flotation tailings using a complex acid leach process. Phase I <strong>of</strong> the project will recover silver and antimony. Later<br />
phases <strong>of</strong> development will include the recovery <strong>of</strong> lead, copper, and tin. KCA’s role began with laboratory testing, process development,<br />
and preparation <strong>of</strong> a feasibility study, and progressed to include all engineering, procurement, construction management,<br />
start up services, and operations management. The project began operations in the middle <strong>of</strong> 1996.<br />
TARKWA - Gold Fields Ghana<br />
Dates: 1994 to 1999<br />
Location: Ghana, West Africa<br />
The Tarkwa Heap Leach Project is a US$ 120 million, 13 million ounce open pit gold mine expected to begin operation in January<br />
1998. Phase I <strong>of</strong> the project, processed ore by heap leaching at a rate <strong>of</strong> 10,000 tpd; this was successfully doubled to<br />
20,000 tpd 2 years after completion <strong>of</strong> Phase I. KCA’s involvement began with advising Gold Fields Laboratories regarding metallurgical<br />
testing procedures, followed by preparation <strong>of</strong> a preliminary design and cost study for the heap leach operation. This<br />
was followed by preparation <strong>of</strong> the heap leach portion <strong>of</strong> a bankable feasibility study. KCA then executed all process design,<br />
from crushing through doré production. KCA is maintained engineers on site during the construction process to advise and assist<br />
Gold Fields and their EPCM contractor. During commissioning, and for some time thereafter, KCA engineers trained Gold Fields<br />
personnel in operation <strong>of</strong> the heap leach. Once routine operation has been achieved, KCA will provide periodic review and assistance<br />
to optimize operations after routine operations were achieved.<br />
MIZEK - Steppe Gold Resources Limited<br />
Dates: 1996 to 1998<br />
Location: Kazakstan<br />
KCA conducted a complete laboratory testing program including bottle roll, agglomeration and column leach tests for this heap<br />
leach project. KCA then completed a definitive feasibility study for a 4000 tonne per day heap leach facility. All elements <strong>of</strong><br />
mining, processing, and infrastructure were included in the study. KCA provided detailed engineering and construction management<br />
services for site earthworks, including the leach pad and process ponds.<br />
CHOQUELIMPIE - Sociedad Contractural Minera Vilacollo<br />
Dates: 1992 - 1996<br />
Location: Chile, South America<br />
This 7 million tonne gold heap leach is located at an altitude <strong>of</strong> 4600 meters (15,000 feet) in northern Chile. KCA provided engineering,<br />
procurement and construction management services for the washing <strong>of</strong> and subsequent gold recovery from the heap.<br />
KCA was responsible for the complete metallurgical process design and management <strong>of</strong> commissioning operations. In October<br />
1994, KCA entered into a 2-year contract to provide complete project management services. Precious metals production was on<br />
track with projections.<br />
SAN FRANCISCO - Geomaque Explorations Ltd.<br />
MORIS - Manhattan Minerals<br />
Dates: 1993 - 1994<br />
Location: Northern Mexico<br />
KCA completed laboratory studies for both <strong>of</strong> the operations in Northern Mexico, and continued providing services throughout<br />
operations both at the lab in Reno as well as in the field.<br />
KCA produced bankable feasibility studies for both <strong>of</strong> these heap leach projects located in Northern Mexico. Both projects are<br />
currently in production.
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
PUQUIO NORTE - Comsur, S. A.<br />
Dates: 1992 - 1997<br />
Location: Bolivia, South America<br />
<strong>Laboratory</strong> testing and a complete feasibility study, including mining, for the installation <strong>of</strong> a 1000 tonne per day heap leach for<br />
this project were conducted in 1992 and 1993. Expanded reserves changed the scope <strong>of</strong> the project from heap leaching to milling.<br />
KCA then produced a bankable feasibility study, including mining, for the installation <strong>of</strong> a 1500 tonne per day CIL mill at Puquio<br />
Norte. KCA provided design <strong>of</strong> the cyanidation circuit and fabricated the stripping and regeneration sections and provided installation<br />
and start up supervision.<br />
BREWERY CREEK - Loki Gold Corporation<br />
Dates: 1990 - 1994<br />
Location: Yukon Territory, Canada<br />
KCA performed the laboratory testing on this 2.3 million tonne per year heap leach project including large (600 mm x 6 m) column<br />
leach tests. KCA also completed the engineering and design <strong>of</strong> the processing facilities which were incorporated into a feasibility<br />
study, and was responsible for the processing section <strong>of</strong> an initial environmental evaluation document that was required by<br />
the local regulatory agencies. The harsh winter climate in the Yukon made the design <strong>of</strong> the heap leach facilities an interesting<br />
challenge. This project began operation in the summer <strong>of</strong> 1996.<br />
SANTA ROSA - Greenstone Resources Ltd.<br />
Dates: 1991 - 1993<br />
Location: Panama, Central America<br />
KCA conducted a feasibility study for this 1.33 million metric tonne per year heap leach project. KCA working with several other<br />
consulting firms, produced a final study that included all aspects <strong>of</strong> environmental permitting, geology, mining, processing and<br />
infrastructure. KCA also provided construction management services for a small heap leach test pad that was constructed during<br />
the "wet season" to determine the feasibility <strong>of</strong> constructing production leach pads during prolonged periods <strong>of</strong> wet weather in<br />
Panama.<br />
GIRILAMBONE - Nord Resources<br />
Dates: 1991 - 1992<br />
Location: Queensland, Australia<br />
KCA conducted agglomeration tests and provided the design <strong>of</strong> the leach pads, solution storage ponds, conveyor stacking system<br />
and heap piping for this copper heap leach project. A senior KCA engineer was onsite to assist with construction and start up <strong>of</strong><br />
the leaching and stacking facilities.<br />
SANSU - Ashanti Goldfields Corp Ltd.<br />
Dates: 1989 - 1990<br />
Location: Ghana, West Africa<br />
The Sansu mine is a 100,000 tonne per month gold heap leach operation located in a tropical, high rainfall environment. KCA<br />
was responsible for all aspects <strong>of</strong> the testing, design, water balance and leaching concepts. Once the project was approved, KCA<br />
provided design engineering, fabrication, procurement supervision, installation services, and a complete modular 125 cubic meter<br />
per hour carbon recovery plant. Following start up, KCA provided one year <strong>of</strong> supervision/training.<br />
POTOSI - Comsur, S.A.<br />
Dates: 1985 - 1990<br />
Location: Bolivia, South America<br />
Potosi is a 1000-TPD dry grind/heap leach project. The process included a three-stage crushing circuit, a dry grind ball mill, an<br />
agglomeration drum, a conveyor and stacking system, and a 150 cubic meter per hour Merrill-Crowe recovery plant. This heap<br />
leach project is unique in that the mined ore is fine crushed to 8 mesh and then reduced in size by dry grinding to 20 mesh prior<br />
to agglomeration for heap leaching. KCA provided the original design and construction supervision and the engineering supervision<br />
for subsequent expansion from 500 to 1000 TPD. KCA also completed conceptual design for further expansion.
<strong>Laboratory</strong> <strong>Statement</strong> <strong>of</strong> <strong>Qualifications</strong><br />
QUALITY ASSURANCE<br />
At KCA we understand that a valid metallurgical and<br />
or analytical determination is the culmination <strong>of</strong> a<br />
large number <strong>of</strong> steps and the efforts <strong>of</strong> a number <strong>of</strong><br />
people. KCA employs a quality control program that<br />
emphasizes utilizing the correct techniques and routine<br />
discussion <strong>of</strong> these techniques by our pr<strong>of</strong>essionals<br />
and technicians.<br />
KCA extensively employs random duplication <strong>of</strong> assays,<br />
spiking and common-element dilutions, and<br />
analysis by alternative methods to ensure that the results<br />
that we report are accurate and reliable.<br />
Every solid sample that is submitted for assay from<br />
KCA is submitted to two separate commercial laboratories.<br />
The laboratories are currently ALS-Chemex in<br />
Reno and Florin Analytical Services LLC (a member<br />
<strong>of</strong> the <strong>Kappes</strong>, <strong>Cassiday</strong> Group <strong>of</strong> Companies).<br />
Environmental analyses <strong>of</strong> solutions are completed<br />
utilizing both EPA and NDEP certified laboratories.<br />
Currently KCA utilizes Great Basin Environmental<br />
and Sierra Nevada Environmental for this work. Florin<br />
Analytical Services is currently seeking State <strong>of</strong> Nevada<br />
Certification for metals. In addition, Florin is currently<br />
seeking certification through ISO9000.<br />
REPORTS OF TESTWORK<br />
INVOICING<br />
<strong>Kappes</strong>, <strong>Cassiday</strong> invoices projects on a monthly basis, typically<br />
invoicing for work actually completed in the previous<br />
month. Long term projects are billed on a time and materials<br />
basis based upon percent completion. <strong>Laboratory</strong> programs are<br />
typically bid/proposed on a “not to exceed” basis with change<br />
orders being issued as the program develops, if necessary. Assay<br />
analyses not completed by KCA in-house are added to the<br />
invoices at cost. Shipping, handling and telephone charges are<br />
added at cost and are detailed in the monthly invoices.<br />
Payments are due within 30 days <strong>of</strong> the date noted on the invoice.<br />
Payment schedules can be altered if approved by KCA in<br />
advance.<br />
KCA reserves the right to withhold any test data obtained if<br />
payments are past due.<br />
PROJECT SCHEDULING<br />
Scheduling <strong>of</strong> Projects is coordinated by the Manager <strong>of</strong> <strong>Laboratory</strong><br />
Services. Larger projects are outlined and scheduled utilizing<br />
a Gantt Chart (Micros<strong>of</strong>t Project). Each project is reviewed<br />
weekly by the laboratory staff to ensure that all aspects<br />
<strong>of</strong> the program are initiated and finalized in a timely manner.<br />
Most projects are initiated within three (3) days <strong>of</strong> sample receipt,<br />
and testing is started within one week <strong>of</strong> sample receipt.<br />
KCA prides itself on preparing quality, complete metallurgical<br />
test program reports. Draft reports are typically<br />
available within two to three weeks after completion<br />
<strong>of</strong> the program and final reports are completed<br />
after review by the client company.<br />
Interim reports are available on a weekly basis as the<br />
program proceeds. These interim reports are required<br />
as most metallurgical programs require a lot <strong>of</strong> discussions<br />
between both the laboratory as well as the client/<br />
project manager as the program develops and data are<br />
received. By establishing good lines <strong>of</strong> communication<br />
with the client, KCA feels that a higher quality product<br />
can be achieved and that the final product will be <strong>of</strong><br />
greater value as the program develops and the project<br />
develops into an operating mine.